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File:Linear visible spectrum.svg

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Description
English: A linear representation of the visible light spectrum. Colour ranges were taken from 'CRC Handbook of Fundamental Spectroscopic Correlation Charts' (see w:Visible spectrum). Spectral XYZ locus coordinates were found here. Every 10nm, the spectral locus point was used as the initial point in a search for a matching sRGB colour (assuming "Dim" viewing condition). The search was carried out by a binary search along a line in CIECAM02 JCh space between the spectral point, and a point with 0.3 * brightness (J), 0 chroma (C), and the same hue (h) as the spectral point. The search finished when a point was found that was in sRGB space. The CAT02 matrix was modified as suggested in Brill(2008) to reduce yellow-blue problems by replacing the bottom row (0.0030, 0.0136, 0.9834) with (0,0,1). An iterative smoothing was carried out to eliminate the largest jumps in chroma (greater than 5% change). Code used to generate the colour gradient can be found here.
Esperanto: Koloroj videblaj
Nederlands: Kleurenspectrum
中文（简体）：软件模拟的可见光谱。
中文（繁體）：軟體模擬的可見光譜。
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Source Own work
Author Gringer
Other versions

Derivative works of this file:

  • Inverse version of this image (linear by frequency in THz)
    Inverse version of this image (linear by frequency in THz)
  • Logarithmic version of this image (logarithmic by wavelength in nm)
    Logarithmic version of this image (logarithmic by wavelength in nm)
  • PNG version that this file was originally based on.
    PNG version that this file was originally based on.

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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File history

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Date/TimeThumbnailDimensionsUserComment
current10:44, 1 September 2024Thumbnail for version as of 10:44, 1 September 2024605 × 115 (6 KB)Gringer (talk | contribs)Add style sheet template to make absorption / emission spectrums easier
07:28, 26 September 2023Thumbnail for version as of 07:28, 26 September 2023605 × 115 (11 KB)Tyroxin (talk | contribs)Fixed line of 450 nm touching the box
13:19, 25 May 2021Thumbnail for version as of 13:19, 25 May 2021605 × 115 (6 KB)Gringer (talk | contribs)Added back stop ids (these have semantic meaning) and minimal indentation
08:22, 16 June 2020Thumbnail for version as of 08:22, 16 June 2020605 × 115 (4 KB)Jarvisa (talk | contribs)Simplified SVG source
05:28, 5 August 2010Thumbnail for version as of 05:28, 5 August 2010605 × 115 (18 KB)Gringer (talk | contribs)10-step iterative chroma smoothing, slightly brighter grey point
15:34, 4 August 2010Thumbnail for version as of 15:34, 4 August 2010605 × 115 (18 KB)Gringer (talk | contribs)Smoothing applied to largest reduction in saturation (blue to cyan)
14:40, 4 August 2010Thumbnail for version as of 14:40, 4 August 2010605 × 115 (18 KB)Gringer (talk | contribs)Only using one adaptation matrix, finer resolution at blue clip point
13:12, 3 August 2010Thumbnail for version as of 13:12, 3 August 2010605 × 115 (18 KB)Gringer (talk | contribs)using Chroma-based cartesian coordinates for search
12:44, 3 August 2010Thumbnail for version as of 12:44, 3 August 2010605 × 115 (18 KB)Gringer (talk | contribs)Modified MH matrix slightly based on [http://www3.interscience.wiley.com/journal/112396194/abstract this]
11:51, 3 August 2010Thumbnail for version as of 11:51, 3 August 2010605 × 115 (18 KB)Gringer (talk | contribs)whoops, that was an older version
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